电导率σ对圆形巷道中电磁波传播的影响  

Conductivity σ influenced to transmission of electric magnetic wave in circular sectional roadway

作　　者：孙继平[1] 潘涛[1] 

机构地区：[1]中国矿业大学(北京)信息工程研究所,北京100083

出　　处：《煤炭科学技术》2006年第10期47-49,共3页Coal Science and Technology

基　　金：博士点专项科研基金(20030290019)

摘　　要：研究了电导率σ在煤矿圆形巷道中对电磁波传播的影响,并得出:在圆形巷道中,由于电导率σ的存在,使得圆形巷道波模的衰减随着频率的增加而单调增大,但是TE01波模的衰减却是随频率增加而单调下降,因此,TE01波模更适合在圆形巷道中传播。The paper had a research on the influence of the conductivity σ in the mine roadway to the transmission of the electric magnetic wave. The results showed that in the mine circular sectional roadway, due to the existing of the conductivity σ, the reduction of the circular roadway wave mode would increase with the increasing of the frequency. But the reduction of the TE01 wave mode would reduce with increasing of the frequency. Therefore, TE01 wave mode would be more suitable transmitted in circular sectional roadway.

关 键 词：电导率σ 圆形巷道 电磁波 

分 类 号：TD65[矿业工程—矿山机电]